Case with motherboard tray: PC Trays — Computer Cases ModMyMods.com

DARK BASE 900 | Silver silent high-end PC cases from be quiet!

high-end

Article number: BG012

Silver

  • 900 Orange

  • 900 Black

  • 900 Silver

Further models

  • Dark Base Pro 900 rev. 2

  • Dark Base 700

Silver

Outstanding flexibility and silence

be quiet! Dark Base 900 Silver is the perfect case for all of those who expect the highest standards when it comes to modularity, compatibility and design

  • Completely relocatable MB-tray with the possibility of an inverse layout
  • Repositionable HDD tray for individual space requirements inside the case
  • Three pre-installed, virtually inaudible be quiet! Silent Wings 3 PWM fans
  • Full-circuit airflow system with noise-reducing vents all around the case
  • Four areas for water cooling radiators up to 420mm on top, front, back and base
  • Three years manufacturer’s warranty
  • German product conception, design and quality control

Characteristics

  • Highlights

  • Technical data

  • Press coverage

  • Downloads

RELOCATABLE MOTHERBOARD TRAY

Flexibility for individual requirements

The decoupled motherboard tray adapts to suit individual requirements, being completely relocatable and usable as a test bench. You can adjust it to three different heights or install it alongside the left panel in an inverted layout with redefined airflow. It is fully compatible with E-ATX and XL-ATX motherboards.

SILENT WINGS 3

Impeccable cooling and silence

The three pre-installed Silent Wings 3 140mm PWM fans offer virtually inaudible operation. They are equipped with a smooth-running 6-pole motor, durable fluid-dynamic bearing and airflow-optimized fan blade design. The frame has funnel-shaped air inlets that generate high air pressure. 

MODULAR HDD SLOTS

Generous space for your setups

The installation options are flexible thanks to repositionable single HDD slots. Supports up to 7 HDDs, 15 SSDs and 2 optical drives. The assembly and handling concept gives you modularity choices, empowering you to create systems that meet the highest of standards.

FULL CIRCUIT AIRFLOW SYSTEM

A silence concept by the silence experts

With its smart silence concept, Dark Base 900 Silver is the perfect case for the extreme requirements of overclocked systems and super silent water-cooled PCs. It can carry up to nine additional fans, up to four radiators and has noise-reducing vents all around the case that provide ultra-effective full circuit airflow.

ADJUSTABLE SIDE PANEL

Amazing versatility for your system

The cases side panel is equipped with an adjustable cover that flexibly suits your individual needs. You can close it for absolute silence, partly open it for more air intake, or completely remove it with the possibility to mount up to two additional fans.

FUNCTIONAL I/O PORT

Convenient features for everyone

The front I/O port offers perfect compatibility for your high-end PC. Manual stepless fan controller supports up to three PWM and three 3-pin fans. 2x USB 3.2 Gen. 1, 2x USB 2.0, HD audio jacks.

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General data
Model Dark Base 900 Silver
ATX PS/2
Motherboard compatibility E-ATX / XL-ATX / M-ATX / Mini-ITX
Installation of motherboards with backplate
Case size excl. stands (L x W x H), (mm)
Case size incl. stands (L x W x H), (mm) 577 x 243 x 585
Dimensions side panel window (L x W), (mm)
Weight (kg) 14.18
Color option Silver
USB 2.0 2
USB 3.2 Gen. 1 2
USB 3.2 Gen. 2 Type C
HD Audio I/O Mic + Audio
Expansion slots 8
Fan mounting locations 12
Qi charger / Quick Charging Option
Infographics

open all / close all

Top cover ABS / Aluminum
Side panel ABS / Steel
Side panel window
Front panel ABS / Aluminum
Stands ABS
5. 25 bays 2
3.5 slots (max.) 7
3.5 slots (scope of delivery) 7
2.5 slots (max.) 15
2.5 slots (scope of delivery) 15
Fan @ top
Fan @ front 2x Silent Wings 3 140mm Silent Wings 3 140mm PWM / 12V (rpm) 1000
Noise level @ 100% dB(A)) 15.5
Airflow @ 100% CFM / m3/h) 59.5 / 101.09
PWM / 12V (mm h3O) 1.08
HDD cage (in height of graphics card) removed (mm) 472
Top panel insulation mats
Front panel insulation mats
Side panel insulation mats
Anti-vibration decoupled PSU
Anti-vibration decoupled motherboard-tray
Front 1
Bottom 1
Side panel 2
Screw set (Drives/Motherboard)
Rubber rail (pcs.)
Standoff (pcs.) 3 (for E-HDD slot cover (pcs.)
Upper fan bracket (pcs.) 1
HDD panel rubber grommet (pcs.) 1
SSD bracket for 1 — How to Make a Motherboard Tray from Scratch3 — Making the Tray Itself

One of the points that definitely crosses the mind of folks wishing to jump into the territory of making a case from scratch, is definitely «How do I make everything line up?»

It’s an important point to consider, since not having mounting holes line up or components fit into spaces is a real pain. There’s a lot to think about when designing a case from scratch, or even just modding an existing chassis in perhaps a more extreme way, because it’s easy to miss details or make mistakes. One classic modding method is to use a donor chassis for this. You take an existing case and simply cut out the motherboard tray and I/O area. The handy thing about this method is you know things will fit and the donor case can be any cheap offering you have to hand.

But what if you want to go a step further? Sometimes, trying to add a donor tray just becomes a pain and other times won’t work at all. This guide should hopefully help out there. Whilst making a set of mounting points for a motherboard is easy, the real lesson here is how to work with the official specifications — it’s a way of thinking.

As you likely know, PC components conform to a number of official spec lists, most commonly ATX, mATX and mini-ITX, plus a handful of others for less common form factors and specific components like power supplies, etc.

You can find PDF versions of the official Spec sheets over at FormFactors.org

But why bother working to these convoluted documents when you can just measure from hardware? Well, for me at least, it’s that you get options. Not only can you know the exact dimensions and mounting-hole placements, you can find out things like the gaps between PCIe slots, the size and position of I/O shield cutouts, sizes and layouts of power supplies — you name it. This is immensely powerful when designing a mod, it allows you to push forward and plan ahead with confidence. That, in turn, allows the prospect of more advanced or exciting ideas in the future.

For this guide I’m sticking to just the motherboard mounting holes. I’ve prepared a bunch of 3D and 2D files based on the various specifications that you can download HERE. Inside you’ll have a Fusion 360 3D file containing ATX, mATX and mini-ITX motherboards, along with 2D DXF and PDF files for printing/inserting into other programs.

Whilst I decided not to include things like the PCIe card height or the motherboard I/O cutouts, I have added the PCIe slot locations to the files, which should make it easier to add things later yourself. If you want additional information, it’s all in the specifications, and having an accurate version of the board layout should make it much simpler.

Link to Downloadable Files

1 — How to Make a Motherboard Tray from Scratch3 — Making the Tray Itself

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Overview of be quiet! Silent Base 802 — i2HARD

Sergey Ivanin

February 1, 2021

An update to the be quiet! — support for CBO radiators up to 420 mm, a speed controller for 6 fans and a lot of places for drives.

A new model of the «quiet» line of cases from be quiet! was called Silent Base 802, although in fact it is an updated and improved version of the Silent Base 801 case already familiar to the public. The main difference is a set of interchangeable mesh panels that can turn the case into an easily ventilated case, but deprive it of sound insulation. In addition, inverse assembly is possible in the case — the motherboard tray can be turned to the right side, and a transparent tempered glass wall is also transferred.

The Silent Base 802 case is interesting as a modified version of its predecessor with the ability to install radiators up to 420 mm on the front wall, large internal volume, modularity of the frame, vertical installation of a video card (up to 432 mm) and, in general, rich opportunities for assembling custom systems. In the review, we will consider the Silent Base 802 variant with a transparent glass side wall (there is also a standard version with two blank walls and sound insulation).

Specifications

  • Form factor: Mid-Tower
  • Dimensions: 539x281x553 mm (with stand)
  • Weight: 13.15 kg
  • Material: steel, ABS, tinted tempered glass 4 mm (left side panel)
  • Motherboard support: E-ATX (305×275 mm), ATX, mATX, mini ITX
  • Expansion slots: 7+2 (vertical)
  • 3. 5″ slots: 7 maximum (3 included)
  • 2.5″ slots: 15 maximum (7 included)
  • Front panel connectors: 2xUSB 3.2 Gen 1, 1xUSB 3.1 Gen 2 Type C, HD audio (headphones, microphone)
  • Fans: front 2x140mm Pure Wings 2 (1000 rpm), and rear 1x140mm Pure Wings 2 (1000 rpm)
  • Space for additional fans: front 1x140mm / 3x140mm, top 3×120/140mm and PSU shroud 1×120/140mm
  • Supported radiators: front 120/140/240/280/360/420 mm, top 120/240/360 mm, rear 120/140 mm
  • Maximum cooler height: 185 mm
  • Maximum graphics card length: 287/432 mm (with HDD cage/without HDD cage)
  • Maximum power supply depth: 288 mm
  • Features: the possibility of inverting the installation of the motherboard

Equipment

Supplied be quiet! Silent Base 802 in a simple cardboard box of impressive dimensions, with a full description of the design and main features.

Inside, the case is in a semi-assembled state — the legs will need to be attached yourself after unpacking. Also in a separate box are an additional basket for drives.

In addition, there is a set of an easily blown front wall and a top grid with magnets. There is also a fastener kit with branded Velcro ties and a very detailed user manual in different languages.

Appearance and design

Outwardly, the novelty is difficult to distinguish from Silent Base 801. It is still the same restrained and strict bequiet! style: straight lines, sharp corners, restrained simplicity of forms. This solution is quite versatile and will suit different assemblies in terms of external style. Of course, the tempered glass side wall requires the installation of backlit elements.

Body materials — steel and ABS plastic, mainly in the front. The top caps and legs are also made of plastic. A rather strange decision for a heavy body (more than 13 kg), but in practice the legs turned out to be quite strong, there are no concerns about this. Installing them during assembly is quite difficult, but they are held in the grooves very securely.

The main advantage of such a chassis is the rise of the body above the surface (by about 20 mm), due to which the airflow of the body is significantly improved, since air freely enters through the lower mesh. It is made retractable, rests on a slide with a latch. The mesh is quite fine and filters dust well, and when dirty, it is easy to pull out and clean.

The second wall of the Silent Base 802 is deaf, with bequiet branded soundproofing! — an impressive layer, 10 mm thick. The same insulation is on the front blank wall.

One of the main features of the case is the easy removal of the side panels. To do this, there are two buttons on the top of the rear wall, which release the latch, and the panels are freely pulled out. No screws and danger of dropping the glass — very convenient for operation and assembly.

The front wall is mounted on latches and can be easily removed by pulling it up. Under the blank panel with sound insulation there is the same dust filter as below, made of fine plastic mesh. It is held on by one large latch.

There is a huge scope for installing cooling elements in the front — a CBO radiator up to 420 mm or 3 120/140 mm fans at once will fit. The depth of the niche in front of the dust filter is about 30 mm; fans can also be fixed from the inside.

The kit comes with a ventilated front wall made of a large metal mesh — it can be installed if the cooling efficiency of the system components is important in the first place.

The rear wall of the case is perforated in the upper part, plus it has a platform for a 140 mm fan. 7 expansion slots are available — the plugs are pressed with thumb screws. It is also possible to install a video card vertically — 2 vertical slots are available. To install the power supply, installation is provided from the outside with a frame mount — in our opinion, one of the most convenient modern solutions.

On the top panel of the case, you can choose between a practically blank wall and a mesh one. They are recessed into the niche and do not protrude beyond the common surface of the wall, they are mounted on magnets and protruding legs that fall into the slots of the lower grille.

Noise isolation is only on 2/3 of the area, on the first panel, and it is noticeably thinner here, only 3-4 mm. The far section of the substrate has no backing at all. This is done for the free exit of hot air from the processor area.

If you install a mesh panel, the ventilation of the case should improve significantly. This will be especially true when installing large SVO radiators or several fans that emit hot air.

The control panel at the top has separate power / reset buttons, and there are also two USB 3.2 Gen 1 connectors, one USB 3.1 Gen 2 Type C, separate 3.5 mm audio outputs for headphones and a microphone. In addition, there is a convenient 4-position switch with auto-mode to adjust the speed of the case fans.

The transparent side wall is made of tempered glass 4 mm thick. There is a slight tinting and vignetting at the edges — a black stripe of about 2 cm. A gap of 4 mm wide is left in the contact zone with the rear wall between the frame and glass, the manufacturer did not provide any sealant in this part. Most likely, this decision is connected with the already heavily perforated rear wall, so there would be little practical sense in closing this gap.

Interior

The interior space of the Silent Base 802 is divided into the bottom compartment for the power supply and the main part, which has a large height due to the overall dimensions of the case. There will be a lot of free space above the motherboard, which will allow you to easily mount fans or large CBO radiators. All motherboard sizes are supported, including E-ATX and mini ITX. A wide window is provided under the motherboard for free access to the back side, for example, for the convenience of installing M.2 drives in mini ITX boards. The maximum height of the CPU cooler is 185 mm.

For cables, there are three holes in the bequiet! branded soft cuffs, and to the right there are 5 slots for additional baskets for drives installed on the back side. Each can fit one 3.5″ drive or two 2.5″ drives. Initially, they are closed with matte plastic plugs that fit well into the overall look.

The lower compartment has 4 plastic plugs that completely separate it from the main volume — this way you can separate air flows in the case, as well as visually hide the power supply cables.

If the ventilation of the case is more important, then the plugs can be easily removed. Under them there is a perforated wall with room for one 120/140 mm fan above the lower drive basket. There is plenty of space for installing a power supply — the maximum length is up to 288 mm, which is very rare among ordinary custom PSUs.

On the side, the compartment is covered with a removable plastic panel with the be quiet! logo.

The lower drive cage is attached to the frame with 3 screws and slides out of the compartment on a slide. For this, a small cutout is provided at the bottom, which makes working with the case much more pleasant. The position of the basket is fixed, but a large margin of space is left between the front wall for installing a large radiator with a fan.

Under the power supply there are rather thick rubber pads that prevent the transmission of vibration to the case and additionally lift the unit from the bottom wall. The PSU can be installed both down and up with a fan — blown meshes are organized on both sides.

The upper wall is also exceptionally thoughtfully executed. For ease of installation of cooling elements, it has a slide and can be pulled out. If desired, you can remove it altogether and put it on the rails already together with the installed elements.

In the closed position, the shelf is secured with two screws. It is possible to install 3 fans 120/140 mm or a CBO radiator up to 360 mm long. The distance between the shelf and the top wall of the case is about 25 mm.

On the reverse side of the partition, there is enough space left for laying cables — about 35 mm. True, it should be borne in mind that on the inside there is still a thick layer of sound insulation on the side wall, which will eat up this space.

In addition to the slots for drive cages, there are 3 more places for 2.5″ drives on a removable sled right behind the motherboard. Fastened with screws that are easy to unscrew with your fingers.

The case fan speed controller is also located here, 6 3pin inputs are available at once. Thus, if desired, you can connect all the fans here, then it will be convenient to adjust their rotation speed through the control panel.

A significant feature of Silent Base 802 is a removable motherboard tray. The entire partition is removed at once, along with the back wall and expansion slots, so that the assembly of the system promises to be very convenient. In addition, the tray can be turned over and installed in reverse. All removable parts of the body are easily rearranged to the other side — the frame is vertically symmetrical, so Silent Base 802 can be easily reoriented to the right or left side. This feature can be decisive for someone — not everyone is comfortable placing the system unit to the right of the monitor.

The tray even has comfortable feet with rubber pads to make it convenient to put it on the table when installing the motherboard. It is fastened with 9 screws, 3 on each vertical edge.

The Silent Base 802 comes with three 140 mm fans — these are branded be quiet! Pure Wings 2 with a maximum speed of 1000 rpm. They belong to the premium, mid-priced be quiet! line, but are not the quietest. You can call them silent only at speeds less than the maximum. At the same time, the fans are quite productive and produce an air flow of 61.2 CFM at 100% PWM.

The complete optional drive cage has two slots for 2.5” drives or one for a 3.5” drive. In this case, fastening is carried out with screws from the sides, rubber seals are present. It is strange that any of the more convenient screwless sled-type solutions have not been implemented here.

System assembly

We will use the following components as a test stand in the Silent Base 802 case:

  • Processor AMD Ryzen 7 2700X 3.8 GHz
  • Motherboard ASRock Fatal1ty AB350 mini ITX
  • RAM 2×8 GB DDR4 3200
  • LSS Thermaltake DX Floe 240 Premium Edition
  • NVIDIA GeForce RTX 3060 Ti
  • graphics card

  • PSU Thermaltake Smart RGB 600W
  • SDD GoodRam CX400 512 GB, ADATA SU650 128 GB, M.2 FALCON 512 GB
  • HDD WesternDigital 3.5” 320 GB

It will be most convenient to start the assembly by installing the power supply. It slides into place very conveniently and attaches to the outer frame. In practice, this is one of the most convenient solutions.

Next, you can proceed to the installation of the motherboard, calmly pulling the tray out of the case. If you have to mount the CBO radiator on top, as in our case, you can at the same time pull out the top shelf and immediately fix it, so that you can then put it in place along with the tray. Perhaps one of the most comfortable assemblies in recent times, you don’t have to crawl anywhere with a screwdriver or risk dropping or scratching something.

A 3.5” HDD is installed in the lower basket, and two SSDs are installed in the additional one. Here you will have to tighten a lot of screws. Although this is not difficult, I would still like to see a screwless solution.

To mount an additional basket, pull out the top plastic plug. The basket is almost invisible and does not clutter up the interior space.

Another 2.5 ”SSD will be conveniently mounted on the tray on the reverse side. The hole under the motherboard has a cutout at the bottom for easy access to the M.2 drive in the motherboard slot.

A huge amount of space has been allocated for the video card in the case, video accelerators up to 432 mm long will fit if you do not put an HDD basket at its level (up to 287 mm with it). Our reference RTX 3060 Ti looks tiny. The case can easily fit two video cards one under the other, 7 expansion slots are available. It’s a pity that there is no support for the video card in the case.

In addition, the possibility of vertical installation of the video card is implemented. Raiser for this, unfortunately, is not provided in the kit. The limitation in this case will be the thickness of the card — up to 2.5 slots.

When laying the cables, Velcro ties from the kit came in handy. They are long enough so that it is convenient to tighten the wires with them. Enough space is allocated for cable management — about 35 mm to the side wall, so there were no difficulties with this; Also, the backlight controller from CBO TT Floe 240 fit below without any problems.

The length of the cables from the control panel is more than enough. Cable routing is not well thought out, everything is left to the will of the assembler, which, of course, is not the most convenient solution.

On the control panel, the power and reset buttons are highlighted, and there is also an indication of HDD operation nearby. The LEDs are not too bright and do not hit the eyes in the dark.

Temperatures and noise levels

To assess the case airflow, we will compare the temperatures of the components at different speeds of the case fans and with different sets of panels — blind and mesh. For the load on the processor and video card, we will use the FurMark benchmark and the AIDA 64 stress test.

To begin with, let’s evaluate the noise level created by case fans alone. To do this, use the three positions of the speed controller on the control panel.

As a result, at the minimum rotation speed and position «1», the fans are not audible against the background of the system. At a distance of a meter, the sound pressure is less than 30 dB. Approximately the same picture is in position «2». But at maximum speed Pure Wings 2 become audible. With mesh panels, the noise reaches 35 dB.

If we compare the heating of the video card chip and the processor, then a big difference is noticeable with different panels. The ventilation of the mesh top panel provides a difference of 9 ° C at the processor, which means a significant stagnation of hot air in the upper part of the case with blind panels.

Also, probably, the strongly decreasing air flow through the front wall affects. With blank panels, it would be most reasonable to install another additional fan for blowing out on the top wall.

The noise level of the system under load is also noticeably different. It is quite possible to notice this difference by ear, although it is not cardinal. Most likely, the situation is even better for the Silent Base 802 variant without a glass wall. In our case, the difference was about 2 dB, which is also not bad.

Conclusion

Corps be quiet! Silent Base 802 can rightfully be considered an improved version of the previous model (Silent Base 801). The model retained all the previous advantages, and also received additional functionality in the form of a set of interchangeable panels, thanks to which you can adjust the case to a specific assembly and environmental conditions. With blank panels with a sound insulation layer of up to 10 mm, the system unit really becomes noticeably quieter, and when installing mesh panels, it boasts excellent airflow and, as a result, high performance of cooling systems.

Also, a separate advantage of the case is its specularity and the possibility of inverse assembly: the motherboard tray can be easily reoriented to the right side, the side walls and other elements inside the case are also easily swapped. The case comes with 3 140mm Pure Wings 2 fans with good performance. Yes, these are not completely silent Pure Wings 3, but at maximum speed against the background of the system under load, they are unlikely to be heard.

The advantage of Silent Base 802 is its large internal volume. For example, CBO radiators up to 420 mm long or up to 3 140 mm fans are placed on the front wall, which allows you to assemble powerful and hot iron in the case. You can also note the thoughtfulness of the case and the comfort during assembly and operation: the side panels are removed with a single button, a separate upper shelf slides out on a slide, almost all elements are removable. There are high-quality dust filters, fan speed control, a USB type-C connector, an additional storage basket. By the way, there is a huge amount of disks: in theory, a maximum of 15 2.5 «or 7 3.5″ and 3 2.5».

All in all be quiet! Silent Base 802 does not force you to make any compromises. On the contrary, two excellent variants of the case are offered at once in one with serious possibilities.

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